Having knowledge of this code could help hackers and others jailbreak the device, helping them find flaws and bugs, which could decrypt iPhones and emulate the smartphones' software, so it can be used on other devices. The codes have since been removed after Apple asked for it claiming that it is proprietary material and is not meant for open circulation on the web.
Apple keeps code like this firmly under lock and key, in a form of 'security through obscurity', as it is essential to the core functionality of iOS.
It is also the same reason the code could be so important for the hacking community who are always on the lookout for vulnerabilities and loop holes in operating systems. Apple itself seems unconcerned about the potential security issues, with the company noting in a statement that the code is already three years old and that "the security of our products doesn't depend on the secrecy of our source code". In summary, it is the program that loads iOS, and is the first program that runs when an iOS device is booted up.
Punch-drunk shares off two-month lows
On currency markets, the dollar rose 0.3 per cent against a basket of currencies but fell nearly half a per cent to the yen. On Wednesday, benchmark 10-year notes last fell 18/32 in price to yield 2.834 percent, from 2.766 percent late on Tuesday.
The code was for the outdated iOS 9, released in September 2015, but it is expected that parts of the code may still be in use underpinning the iPhone's security in later releases.
Andy Kays, chief technology officer at British cybersecurity firm Redscan, told Sky News: "The release of the iBoot code demonstrates that vendors can't take it for granted that source code will always remain hidden".
Canada sheds 88000 net jobs, but sees full-time gains
In the United States, there was a increase of 200,000 jobs in January and the unemployment rates was unchanged at 4.1 per cent. Economists are always cautious about reading too much into one-month of numbers in a data series that can be volatile.
Sky News has contacted Apple for a comment. While Apple has said that the leak is essentially nothing for users to be concerned about, it makes one wonder whether Apple's ecosystem is as roughly locked down as once thought.
iOS bootloader The leak could be of value to "jailbreakers" who install third-party software on iPhones and iPads.
Apple has played down fears that leaked source code from an old version of its iOS operating system could compromise the security of some products. Many people ignored it because the user had a short history of posts.
IPhone source code leaked online could mean payday for hackers
Interestingly, the same source code was also published on Reddit four months earlier by a user named apple_internals . Apple is not happy at all today with some of its critical source code having been posted online for the world to see.